The iPhone produced by Apple is one of the most popular smart phone all over the world nowadays. Iphone is perfect combination among computer, iPod, digital camera and cellular phone with touchscreen interface.
One of unique feature of Iphone is IOS operating system. It is completely different from other smart phone brands.
In 2008, founder of Apple is CEO Steve Jobs introduced the first iPhone to the public. It was called the iPhone 3G with 8 GB and 16 GB models. It remarked origin of Iphone for the next years.
The same year, the iPhone OS 2.0 update launched with a few new features designed for business like setting up Microsoft Exchange email, increasing security features or improving management capabilities. Both Iphone had assisted global positioning system (A-GPS) although they had limitation compared other brands like not having stereo audio, laptop tethering or FTP or bluetooth in earphone. Above all, Iphone 3G received many orders from users.
In 2009, Apple released the iPhone 3GS and iPhone OS 3.0 with 16 GB and 32 GB models after continuous success of the debut Iphone 3G and OS 2.0. It had improvements about hardware like a video camera, integrations compass or faster download speed.
In 2010, Apple released the iPhone 4 with IOS operationg system. It maintains for all versions in the next years. One of the most outstanding feature is FaceTime app. You can call videos for other through Wi-fi.
In 2011, Apple released the Iphone 4S with update IOS 5. It introduced Icloud and iMessage function.
In 2012, Apple released iPhone 5, 5C and 5S. Then iPhone 6 and 6 Plus; 6S and 6S Plus were launched in 2014, iPhone 7 and 7 Plus in 2016, iPhone 8, 8 Plus and iPhone X in 2018.
As report from Apple, the first iPhone sold over 6 million units in first four countries launched. Until now, iPhone has sold hundreds of millions per year in almost every country. Almost user prefer to choosing iPhone as the best smart phone.